Driving mechanism for ore concentrators



Sept. 18, i923. l

c. F. Rs-:ll--F DRIVING MECHANISM FOR ORE CONCENTRATORS Filed April 7.1922 2 Sheets-Sheet 1 III" w INVENTOR ATTORNEY sep@ 1s, 1923. magma C.F. REIFF DRIVING MECHANISM FOR ORE CONCENTRATORS Filed April V. 1922 2Sheets-Snai@ 2 5f/'j INVENTOR ATTORNEY i seY Patented Sept. l, 1923.

Nl@ TTES CARL F. REIFF, OF FORT WAYNE, INDANA, ASSIGNOR TO DEISTERCONCENTRATOR COMPANY, A CORPORATION OF INDANA.v

DRIVING MECHANISM FR ORE CONCENTRATORS.

`Application filed April 7,

This invention relates to im arovements in Y driving mechanism for orecencentrators and the obj ect thereof is to provide an actuatingmechanism, for concentrating tables, themoving part-s o-f which are soconstructed and arranged in conjunction with enclosing means thatcopiouslubrication of its 'various wearing surfaces `will bel continuouslymaintained.

In the usual practice the bearing surfaces of the driving mechanism,owing to the high velocity, severe strain, and. protracted operationrequired, tend to become overheated Vwhich causes Vthe lubricant tovanish and the bearing. parts to out and become destroyed. To circumventthis difliculty by providing means for continuously supplying ampleVlubrication to the various bearing parts of the mechanism and. theprovision for sheltering the bearing parts and the lubricant supplymeans is included as an object of the invention.V

The foregoing objects are accomplished by the construction illustratedin the accompanying drawings in which:- Y

Fig.` 1 is a transverse section of a driving mechanism embodying theinvention;

F ig. 2 is a detail view of a part of the Vmechanism shown'in Fig.V 1 ina plane at right angles, thereto, including the pitman;

Fig. 3 is a detail plan view of the pitman, partlybrolren away;

Fig. 4 is a plan view of a toggle usedin the mechanism g Fig. 5 is a.front elevation of the mecha- Vn ism partly broken away; and Y Fig. 6 isa section of Fig.V 1 on the line 6-6 thereof. Y Y

The characters appearing in the description refer to parts shown in thedrawings and designated thereon by Vcorresponding characters: y l

Therinvention is comprised of a driving mechanism arranged inconjunction with aV housing which is adapted to contain a quantity ofliquid lubricant, and means whereby the lubricant is circulated Vso thatthe bear- 1922. Seriall No. 550,282.

ing parts of the mechanism are continuously bathed therewith. Thehousing is comprised of a hollow base 1 surmounted by a hollow cover 2,the cover having a ledge 3 that depends within the base along its upper.edge. rEhe cover also has an external lip 4 extending around its loweredge that overhangs the corresponding meeting edge of the base. l

The mechanism in the present instance, which is given as an example ofthe invention, consists of a crank-shaft 6 upon which Vis mounted aaitman 7 that has a )in 8 4in its lower end. The Vpin has connection atits outer ends with the corresponding arms 9 of a yoke 10 which is forconnection with a. concentrating table (not shown) which is to beactuated., The pin S also has bearing relation with a toggle 11 thatbears also upon a stationary pin 12 that is mounted in a frame 13 whichis vertically adjustable in the base.

W' hen the crank shaft is revolved movement is imparted to the yokethrough the medium of the pitman guided bythe toggle. rilhe purpose ofthe invention is particularly to insure constant lubrication of thebearing surfaces of the pins 8 and 12 with the toggle, the bearingsurfaces between the pin S and the yoke, and the bearing surfacesbetween the crank-shaft and the pitman.

The base 1 is constructed so as to hold a quantity of liquid lubricant,the level of which may rise to a point somewhat lower than the openings14 through which the arms 9 of the yoke 10 enter the housing, and thebase has in its bottom a sump 15 into which the lubricant rec-ecles.

The head 16 of the pitman has a chamber 17 therein that hascommunication with an impulse pump 18 through a pipe 19 which is securedin the head. The pump has a ball valve 2O that rests upon a seat 21 nearits lower open end, and the endof the pump extends into the sump and isreciproca-ted therein accordingly as the pitman is actuated.

A cap 22 is secured upon the head 16 of the'pitman, there being a pairof shims 24 between the head and cap, and a pair of bushings 25 in thehead and cap respectively bear upon the crank-shaft 6.

An opening' 26 extends from the chamber 17 in the head through thelowermost bushing 25 for the passage of the lubricant from ion thechamber to the crank-shaft. The cap 2Q has in its forward edge a recess27, and the shim 24: has a corresponding recess 28, and

the forward upper part of the head has a vgap 29 adjacent said recesses.Vhead has a discharge. opening 30 extending Also, the

from its chamber 17 and opening at the Y recess 28 in the shim.

VIn the operation of the invention, lubricatingoil is placed in the basesuticient in quantity that the sump becomes filled and its level willrise approximately to reach the lower end of the pitman. Then the shaftlis rotated the pitman is caused to gyrate and the impulse pump which is'attached to the head of the pitman is plunged into the sump causing theoil in the sump to rise past Vthe valve ot the'pu'mp.V As the operationis continued the. chamber in the head becomes 'iled with oil from thesump and 'the :crank-shaft becomes lubricated through the opening Q6.Alsmthe oil from the chamber passes out through the opening 30 into therecess Q8 and tloivs out through the gap 29 and drops upon the'togglepin 12. Theplunging movement ot the pump into the oil iilled sump causesthe oil to be splashed upon the pin 8 at the lower end of the-pitman.Thus, the lubricant is convtinuously supplied to all of the bearingparts of vthe mechanism contained Ywithin the housing.

What I claim is `l. A housing having` a sump adapted to contain oil, acrank-shaft extending through the housing; a pitman actuated by the'Vcrankshaft and having a chamber in its head; an impulse pump movablewith the Y pitman adapted to deliver oil from the sump to said chamber;and a toggle mechanism in the housing actuated by the pitman, therebeing an opening for the passage of oil from Y said chamber to thecrank-shaft and ajdischarge opening orthe overlow of oil from saidchainber'onto the toggle mechanism.

2. In apparatus of the class described, a

housing including a base -adaptedto contain l the housing; a hollowheadedpitman actu-V ated by the driving member and having an overiioivoutlet; amechanism, having' bearings Within the housing beneath saidoutlet; and an impulse pump movable with' the pit-- man, extending intothe sump andV ha ing communication With theliollow head thereot, saidbearings being adapted to receive oil from said outlet.

4. In apparatus of the classdescribed, a housing having a base adaptedto containv oil; a driving member extending through the housii'ig, ahollow headed piitman act-uated by the driving member, and havingan iiioverflow outlet; a mechanism having bearings in the housing beneath theoutlet in actuated relation with the p-itman; and means for conveyingoilfrom the base into the hollowhead of the pitman as it is actuatcd.

In testimony whereof I aiiix my signature in presence of two Witnesses.

CARL F. REIFF.V

Witnesses Y C. J. METTLER, MATILDA -METTLER.

